In the story "A&P," the girls in bathing suits sets off the main conflict. Option A is correct.
"A&P" is a short story by John Updike that was first published in 1961.
The narrator of the story is Sammy, a nineteen-year-old boy working the checkout line at an A&P in a small New England town. When three girls come into the store wearing only bathing suits and are chastised by the store manager, Sammy quits his job, hoping to impress them, and is then filled with foreboding about the future.